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Broadcom Expects First Next Gen 1Gbps Wi-Fi Kit to Ship by End 2012

Posted: 13th Dec, 2011 By: MarkJ
Wi-Fi LogoBroadcom, a semiconductor developer for wired and wireless communications (i.e. Broadcom chips can be found in a lot of broadband ISP routers), has revealed at an event in San Francisco that the next generation of IEEE approved wireless ( Wi-Fi ) networking technology, 802.11ac, should make it into the first commercial products by the end of 2012.

The new 802.11ac standard is special for a number of reasons, although its ability to deliver speeds of "approaching" 1Gbps (Gigabits per second) over the clearer 5GHz spectrum band (i.e. less interference to deal with) is undoubtedly one of its most important features.

Existing 802.11n (N Spec) Wi-Fi kit runs via 20/40MHz channels, while the new standard will be able to use 40/80MHz (effectively doubling the capacity). MU-MIMO (Multi-User MIMO) is then used to transmit multiple spatial streams where each spatial stream can be directed to a different station, which improves the efficiency and throughput.

The technology is needed because some fixed line fibre optic ( FTTH ) based broadband ISP connections are already able to deliver speeds of 1Gbps, which is of little use if your home wireless network can't cope. Some UK ISPs have already had to deal with unfair complaints from customers whom buy a superfast broadband connection but fail to understand when the speed via their slower Wi-Fi link doesn't match.

Earlier this year In-Stat predicted (here) that 802.11ac-enabled devices will go from ZERO in 2011 to nearly 1 Billion by 2015. The WiFi Alliance, a non-profit international association formed in 1999 to certify interoperability of Wireless Local Area Network (WLAN) products, expects to ratify the new standard by mid-2012.

It should be noted that 802.11ac is designed to complement the short-range Wireless Gigabit Alliance™ (WiGig) technology (details), which uses unlicensed 60GHz spectrum to deliver Wi-Fi speeds of up to 7Gbps! The first WiGig compatible Wi-Fi products are "scheduled" to launch within the same timeframe as 802.11ac.
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